Bathroom Fan Pros · Mississauga

Is Your Bathroom Fan Moving Air?

A small piece of toilet paper held at the grille can show whether the fan creates some suction. It is not a CFM measurement and does not prove the duct or exterior termination works.

Noise, humidity-clearing time, dust buildup, dampers, duct restrictions, and replacement air all help explain the real problem.

Read the Mississauga weak-airflow guide

Placement rule

Place only with the location owner's permission and record the placement; remove it when the destination or campaign becomes stale.